Added print statements in "OSMBehaviorController" to debug why salient...

Added print statements in "OSMBehaviorController" to debug why salient behavior causes an "AssertionError" when using event-driven update scheme.

VadereModelTests/TestSalientBehavior/scenarios/01-ExperimentSetup-OSMEventDriven.scenario

 {
   "name" : "01-ExperimentSetup-OSMEventDriven",
   "description" : "",
-  "release" : "0.8",
+  "release" : "0.9",
   "processWriters" : {
     "files" : [ {
       "type" : "org.vadere.simulator.projects.dataprocessing.outputfile.TimestepPedestrianIdOutputFile",
@@ -671,7 +671,7 @@
         "minimumSpeed" : 0.5,
         "maximumSpeed" : 2.2,
         "acceleration" : 2.0,
-        "footStepsToStore" : 10,
+        "footStepsToStore" : 4,
         "searchRadius" : 1.0,
         "angleCalculationType" : "USE_CENTER",
         "targetOrientationAngleThreshold" : 45.0

VadereModelTests/TestSalientBehavior/scenarios/02-ExperimentSetup-OSMSequential.scenario

 {
   "name" : "02-ExperimentSetup-OSMSequential",
   "description" : "",
-  "release" : "0.8",
+  "release" : "0.9",
   "processWriters" : {
     "files" : [ {
       "type" : "org.vadere.simulator.projects.dataprocessing.outputfile.TimestepPedestrianIdOutputFile",

VadereModelTests/TestSalientBehavior/scenarios/03-UnidirectionalFlow-OSMSequential.scenario

 {
   "name" : "03-UnidirectionalFlow-OSMSequential",
   "description" : "",
-  "release" : "0.8",
+  "release" : "0.9",
   "processWriters" : {
     "files" : [ {
       "type" : "org.vadere.simulator.projects.dataprocessing.outputfile.TimestepPedestrianIdOutputFile",

VadereModelTests/TestSalientBehavior/scenarios/04-CounterFlow-OSMSequential.scenario

 {
   "name" : "04-CounterFlow-OSMSequential",
   "description" : "",
-  "release" : "0.8",
+  "release" : "0.9",
   "processWriters" : {
     "files" : [ {
       "type" : "org.vadere.simulator.projects.dataprocessing.outputfile.TimestepPedestrianIdOutputFile",

VadereSimulator/src/org/vadere/simulator/models/osm/OSMBehaviorController.java

@@ -11,6 +11,7 @@ import org.vadere.state.scenario.Pedestrian;
 import org.vadere.state.scenario.Target;
 import org.vadere.state.scenario.Topography;
 import org.vadere.state.simulation.FootStep;
+import org.vadere.state.simulation.VTrajectory;
 import org.vadere.util.geometry.shapes.VPoint;
 import org.vadere.util.geometry.shapes.Vector2D;
 
@@ -247,6 +248,7 @@ public class OSMBehaviorController {
         VPoint newPosition = pedestrian2.getPosition().clone();
         VPoint oldPosition = pedestrian1.getPosition().clone();
 
+        // TODO Set also "timeOfNextStep" and "stepDuration" proberly.
         pedestrian1.setNextPosition(newPosition);
         pedestrian2.setNextPosition(oldPosition);
 
@@ -254,6 +256,36 @@ public class OSMBehaviorController {
         // Number of pedestrians in LinkedCellGrid does not match number of pedestrians in topography".
         makeStep(pedestrian1, topography, pedestrian1.getDurationNextStep());
         makeStep(pedestrian2, topography, pedestrian2.getDurationNextStep());
+
+        printDebugInfos(pedestrian1, pedestrian2);
+    }
+
+    private void printDebugInfos(PedestrianOSM pedestrian1, PedestrianOSM pedestrian2) {
+        PedestrianOSM[] pedestrians = new PedestrianOSM[] { pedestrian1, pedestrian2 };
+
+        for (int i = 0; i < pedestrians.length; i++) {
+            PedestrianOSM currentPed = pedestrians[i];
+
+            System.out.println(String.format("Position %d: %s", currentPed.getId(), currentPed.getPosition()));
+            System.out.println(String.format("Trajectory %d: %s", currentPed.getId(), currentPed.getFootSteps()));
+
+            LinkedList<FootStep> currentFootsteps = currentPed.getFootSteps().getFootSteps();
+
+            if (currentFootsteps.size() >= 2) {
+                for (i = 1; i < currentFootsteps.size(); i++) {
+                    FootStep previousFootstep = currentFootsteps.get(i - 1);
+                    FootStep currentFootstep = currentFootsteps.get(i);
+
+                    if (previousFootstep.getEndTime() > currentFootstep.getStartTime()) {
+                        System.out.println(String.format("  Assertion failed (at index %d): previousEndTime > currentStartTime", i));
+                        System.out.println(String.format("  %.2f -> %.2f (positions: %s -> %s)",
+                                previousFootstep.getEndTime(), currentFootstep.getStartTime(),
+                                previousFootstep.getEnd(), currentFootstep.getStart()
+                        ));
+                    }
+                }
+            }
+        }
     }
 
 }

VadereState/src/org/vadere/state/scenario/Pedestrian.java

@@ -104,6 +104,7 @@ public class Pedestrian extends Agent {
 	public ScenarioElementType getType() {
 		return ScenarioElementType.PEDESTRIAN;
 	}
+	// TODO Rename "getFootSteps()" to "getTrajectory()".
 	public VTrajectory getFootSteps() {
 		return trajectory;
 	}

VadereState/src/org/vadere/state/simulation/VTrajectory.java

@@ -38,6 +38,10 @@ public class VTrajectory implements Iterable<FootStep> {
 	}
 
 	// Methods
+	public int size() {
+		return footSteps.size();
+	}
+
 	public Optional<Double> speed(@NotNull final VRectangle rectangle) {
 		VTrajectory cutting = clone();
 		cutting.cut(rectangle);